12 Aug
2024
12 Aug
'24
5:02 a.m.
Hi,
in my stash of IC's Ive found a small box containing some Harris TTL
Proms 75xx and 76xx.
Interestingly the print is up right when the pin 1 is on the left side.
I think they are pulled somewhere, otherwise they look linke new..even
the pins aren't strongly rectangular..they are spread a little to the
outside.
I don't know what todo with them. If someone recognizes the numbers
printed on them and think that he want those chips, I'll ship them
worldwide for just the shipping costs.
Drop me a mail, otherwise the will enter the dumpster in a week.
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
12 Aug
12 Aug
7:53 a.m.
Could you please post a picture or list the type numbers?
About 13 years ago we swapped RQDX disk controllers, you got an RQDX3, amd
I got an RQDX2 I wanted for my MicroVAX I, do you remembe?
Holm Tiffe via cctalk <cctalk(a)classiccmp.org> schrieb am Mo., 12. Aug.
2024, 11:12:
Hi,
in my stash of IC's Ive found a small box containing some Harris TTL
Proms 75xx and 76xx.
Interestingly the print is up right when the pin 1 is on the left side.
I think they are pulled somewhere, otherwise they look linke new..even
the pins aren't strongly rectangular..they are spread a little to the
outside.
I don't know what todo with them. If someone recognizes the numbers
printed on them and think that he want those chips, I'll ship them
worldwide for just the shipping costs.
Drop me a mail, otherwise the will enter the dumpster in a week.
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
3:11 p.m.
Hi Holm,
I use some of those PROMs, but shipping from Germany may make it not so
good.
And, of course, if they are already programmed then they are worthless -
at least to me! I tkae it there are no extra numbers stamped over the
Harris part numbers? They are probably not burned if so.
How may chips have you got - perhaps just send me a photo perhaps?
I am interested!
Thanks for posting,
John :-#)#
On 2024-08-12 2:02 a.m., Holm Tiffe via cctalk wrote:
Hi,
in my stash of IC's Ive found a small box containing some Harris TTL
Proms 75xx and 76xx.
Interestingly the print is up right when the pin 1 is on the left side.
I think they are pulled somewhere, otherwise they look linke new..even
the pins aren't strongly rectangular..they are spread a little to the
outside.
I don't know what todo with them. If someone recognizes the numbers
printed on them and think that he want those chips, I'll ship them
worldwide for just the shipping costs.
Drop me a mail, otherwise the will enter the dumpster in a week.
Regards,
Holm
--
John's Jukes Ltd.
7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
Call (604)872-5757 (Pinballs, Jukes, Video Games)
flippers.com
"Old pinballers never die, they just flip out"
13 Aug
13 Aug
8:53 a.m.
John Robertson via cctalk wrote:
Hi Holm,
I use some of those PROMs, but shipping from Germany may make it not so
good.
And, of course, if they are already programmed then they are worthless -
at least to me! I tkae it there are no extra numbers stamped over the
Harris part numbers? They are probably not burned if so.
The question wasn't for people that couldn't use them, it was meant the
other way around...just to clearify this.
How may chips have you got - perhaps just send me a photo perhaps?
Yes, forgot the links.. see the other post.
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
8:55 a.m.
https://www.tiffe.de/images/TTL-1.jpg
https://www.tiffe.de/images/TTL-2.jpg
https://www.tiffe.de/images/TTL-3.jpg
Forgot those links..
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
9:02 a.m.
..after a closer look, the proms are don't even Harris..that's something
lieke a "-B" on them..
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
9:31 a.m.
On Aug 13, 2024, at 9:02 AM, Holm Tiffe via cctalk
<cctalk(a)classiccmp.org> wrote:
..after a closer look, the proms are don't even Harris..that's something
lieke a "-B" on them..
Regards,
Holm
It looks that way to me, too. It is the Burroughs logo; you can see the exact same image
on 1970s era manuals (see Bitsavers for example).
paul
2:51 p.m.
Paul Koning via cctalk wrote:
Ok Thx Paul..
I just wanted to ask if someone can use them before they get go into the
trash.
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
On Aug 13, 2024, at 9:02 AM, Holm Tiffe via
cctalk <cctalk(a)classiccmp.org> wrote:
..after a closer look, the proms are don't even Harris..that's something
lieke a "-B" on them..
Regards,
Holm
It looks that way to me, too. It is the Burroughs logo; you can see the exact same image
on 1970s era manuals (see Bitsavers for example).
paul
14 Aug
14 Aug
3 a.m.
On Tue, 13 Aug 2024, Holm Tiffe wrote:
Paul Koning via cctalk wrote:
Well, you could always send them to us ;-)
BTW it was a Google search of 3 minutes.
- Burroughs 1673 7108
RAM3 DIP MEMORY ARRAY
- Burroughs 1674 5150
RAM1 1024 BIT RAM MEM
Both parts found in the B1700 parts manual on bitsavers.
The third one could be a sort of driver or TTL part. The 2539 9908 (not
9809 as here) would be an Intel 3207A.
Christian
It looks that way to me, too. It is the
Burroughs logo; you can see
the exact same image on 1970s era manuals (see Bitsavers for example).
I just
wanted to ask if someone can use them before they get go into the
trash.
4:24 p.m.
Christian Corti via cctalk wrote:
On Tue, 13 Aug 2024, Holm Tiffe wrote:
And where exactly is "us" and do you want to pay for a Hermes parcel?
Paul Koning via cctalk wrote:
Well, you could always send them to us ;-) It looks that way to me, too. It is the
Burroughs logo; you can see
the exact same image on 1970s era manuals (see Bitsavers for example).
I just
wanted to ask if someone can use them before they get go into the
trash.
BTW it was a Google search of 3 minutes.
- Burroughs 1673 7108
RAM3 DIP MEMORY ARRAY
- Burroughs 1674 5150
RAM1 1024 BIT RAM MEM
Both parts found in the B1700 parts manual on bitsavers.
The third one could be a sort of driver or TTL part. The 2539 9908 (not
9809 as here) would be an Intel 3207A.
Christian
If one knows that this are Burroughs Chips and is interested to find out
what they are good for.. then yes.
:-)
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
13 Aug
13 Aug
12:40 p.m.
On 2024-08-13 6:02 a.m., Holm Tiffe via cctalk wrote:
..after a closer look, the proms are don't even
Harris..that's something
lieke a "-B" on them..
Regards,
Holm
Those look pre-programmed to me, the stamped label is often crooked and
all are backwards from how everyone else stamps their chips.
Only of interest to Burroughs museum folks. You might want to send them
to a computer museum for spares. Is Dave McGuire (Data IO list) here?
John :-#)#
--
John's Jukes Ltd.
7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
Call (604)872-5757 (Pinballs, Jukes, Video Games)
flippers.com
"Old pinballers never die, they just flip out"
2:50 p.m.
John Robertson via cctalk wrote:
On 2024-08-13 6:02 a.m., Holm Tiffe via cctalk wrote:
That's new to me..mean that with the reverse labeling.
That they may be programed was my supposition, that's why I've talked
about persons who kow about the numbers. Ok, ppl. that have a Burroughs
at home and know what that chips are doing may be scarce...
Regards,
Holm
..after a closer look, the proms are don't
even Harris..that's something
lieke a "-B" on them..
Regards,
Holm
Those look pre-programmed to me, the stamped label is often crooked and
all are backwards from how everyone else stamps their chips.
Only of interest to Burroughs museum folks. You might want to send them
to a computer museum for spares. Is Dave McGuire (Data IO list) here?
John :-#)#
--
John's Jukes Ltd.
7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
Call (604)872-5757 (Pinballs, Jukes, Video Games)
flippers.com
"Old pinballers never die, they just flip out"
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
3:23 p.m.
On Aug 13, 2024, at 2:50 PM, Holm Tiffe via cctalk
<cctalk(a)classiccmp.org> wrote:
John Robertson via cctalk wrote:
I wonder if T7543 etc. is the date code and that 23599809 or similar number is a Burroughs
part number.
paul
On 2024-08-13 6:02 a.m., Holm Tiffe via cctalk
wrote:
That's new to me..mean that with the reverse labeling.
That they may be programed was my supposition, that's why I've talked
about persons who kow about the numbers. Ok, ppl. that have a Burroughs
at home and know what that chips are doing may be scarce... ..after a closer look, the proms are don't
even Harris..that's something
lieke a "-B" on them..
Regards,
Holm
Those look pre-programmed to me, the stamped label is often crooked and
all are backwards from how everyone else stamps their chips.
14 Aug
14 Aug
3:28 a.m.
Paul Koning via cctalk wrote:
I think very much the same. There are chips with different T7xxx numbers
but the same long part number at bottom.
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Goethestrasse 15, 09569 Oederan, USt-Id: DE253710583
info(a)tsht.de Tel +49 37292 709778 Mobil: 0172 8790 741
On Aug 13, 2024, at 2:50 PM, Holm Tiffe via
cctalk <cctalk(a)classiccmp.org> wrote:
John Robertson via cctalk wrote:
I wonder if T7543 etc. is the date code and that 23599809 or similar number is a
Burroughs part number.
paul On 2024-08-13 6:02 a.m., Holm Tiffe via cctalk
wrote:
That's new to me..mean that with the reverse labeling.
That they may be programed was my supposition, that's why I've talked
about persons who kow about the numbers. Ok, ppl. that have a Burroughs
at home and know what that chips are doing may be scarce... ..after a closer look, the proms are don't
even Harris..that's something
lieke a "-B" on them..
Regards,
Holm
Those look pre-programmed to me, the stamped label is often crooked and
all are backwards from how everyone else stamps their chips.
3
days inactive
5
days old
13 comments
5 participants
participants (5)
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Christian Corti -
Hans-Ulrich Hölscher -
Holm Tiffe -
John Robertson -
Paul Koning